Posted by metasonix [ 69.111.133.1 ] on July 08, 2004 at 00:17:10:

In Reply to: tube rectifiers posted by rohit on July 07, 2004 at 18:31:09:

A tube rectifier has a major advantage, built-in slow warmup. But it has a lot of disadvantages--wasting power, needing a separate filament winding, causing massive destruction if it develops gas, etc.

Cheap diodes have slew-rate problems which can increase the noise floor in the amp. I'd use FREDs, and a time delay switch or standby switch. And recommend you precede each diode with a 100-ohm 5w resistor to reduce the turn-on surge. That simple trick can increase reliability of the power supply considerably.

Replies:

• Re: tube rectifiers - rohit 17:59:34 07/08/04 (0)
• Re: tube rectifiers - manualblock 07:41:41 07/08/04 (6)
  • Re: tube rectifiers - metasonix 23:43:09 07/08/04 (5)
    • Re: tube rectifiers - manualblock 21:44:58 07/09/04 (2)
      • Re: tube rectifiers - metasonix 03:44:24 07/10/04 (1)
        • Re: tube rectifiers - manualblock 13:39:23 07/10/04 (0)
    • Re: tube rectifiers - rohit 18:34:34 07/09/04 (1)
      • Re: tube rectifiers - metasonix 22:59:44 07/17/04 (0)